She is our hero and is the star that all other planets orbit. She’s the natural born leader of her friends; one they all too often follow blindly at their own risk. Mavis is 114 3⁄4 years old and is in full-on teenager mode: she’s moody, a know-it-all, and is fearless in all the wrong ways. But she’s also rather inventive, driven, and desperate to prove she’s ready for more adult responsibilities.